#include"mymath.h"
#include"mystdio.h"

int main()
{
    int a = 10;
    int b = 20;
    printf("%d+%d=%d\n",a,b,myAdd(a,b));

    myFILE* fp = my_fopen("myfile.txt","w");
    if(fp==NULL)return 1;

    const char* message  = "what can i say\n";
    my_fwrite(fp,message,strlen(message));
    my_fclose(fp);

    return 0;
}